System for improving display resolution

Abstract

A system for improving the display resolution by the reduction of chromatic aliasing.

1. A method for re-sampling an image having at least three color channels having chromatic information and luminance information comprising the steps of:
 (a) re-sampling said luminance information using a first re-sampling process and attenuating at least a portion of lower frequency chromatic information with respect to at least a portion of higher frequency chromatic information resulting from said re-sampling of said luminance information; 
 (b) re-sampling said chromatic information of said image using a second re-sampling process, at least one of:
 (i) re-sampling of said luminance information is different than said re-sampling of said chromatic information; and 
 (ii) said second process processes pixels of said image in a manner different than said first process; 
 
 (c) combining said re-sampled luminance information, said re-sampled chromatic information, and at least a portion of said higher frequency chromatic information into a re-sampled image. 
 
     
     
       2. The method of  claim 1  wherein said re-sampling of said luminance includes re-sampling. 
     
     
       3. The method of  claim 1  wherein said attenuating is using a high pass filter. 
     
     
       4. The method of  claim 1  wherein said re-sampling of said luminance information results in two chromatic channels, where each of said chromatic channels is attenuated in a different manner. 
     
     
       5. The method of  claim 1  wherein said re-sampling of said luminance information is in accordance with a model based upon the human visual system. 
     
     
       6. The method of  claim 1  wherein said re-sampling of said chromatic information includes re-sampling. 
     
     
       7. The method of  claim 1  wherein said re-sampling of said luminance information of said image is performed in such a manner that chromatic aliasing is reduced from what it would have been had said re-sampling of said luminance information been re-sampled in the same manner as said re-sampling of said chromatic information. 
     
     
       8. The method of  claim 1  wherein said re-sampling of said luminance information is performed on a luminance portion of said image free from substantial re-sampling of chromatic information of said image, while said re-sampling of said chromatic information is performed on a chromatic portion of said image free from substantial re-sampling of luminance information of said image. 
     
     
       9. A method for re-sampling an image having at least three color channels comprising the steps of:
 (a) re-sampling luminance information of said image, wherein said luminance information is at least 60% of the luminance of said image; and 
 (b) attenuating at least a portion of lower frequency chromatic information with respect to at least a portion of higher frequency chromatic information resulting from said re-sampling of said luminance information. 
 
     
     
       10. The method of  claim 9  wherein said re-sampling of said luminance includes pixel re-sampling. 
     
     
       11. The method of  claim 9  wherein said attenuating is using a high pass filter. 
     
     
       12. The method of  claim 9  wherein said re-sampling of said luminance information results in two chromatic channels, where each of said chromatic channels is attenuated in a different manner. 
     
     
       13. A method for re-sampling an image comprising a plurality of at least three channels, wherein a first one of said channels has a luminance component comprising at least 60% of the luminance of said image, wherein at least one of a second and third one of said channels has a color component;
 (a) re-sampling said first channel of said image; 
 (b) attenuating at least a portion of lower frequency chromatic information with respect to at least a portion of higher frequency chromatic information resulting from said re-sampling of said first channel of said image; and 
 (c) re-sampling said second channel of said image. 
 
     
     
       14. The method of  claim 13  wherein said luminance component comprises at least 70% of the luminance of said image. 
     
     
       15. The method of  claim 13  wherein said luminance component comprises at least 80% of the luminance of said image. 
     
     
       16. The method of  claim 13  wherein said luminance component comprises at least 90% of the luminance of said image. 
     
     
       17. The method of  claim 13  wherein said plurality of channels are color difference channels. 
     
     
       18. A method for re-sampling an image having at least three color channels having chromatic information and luminance information comprising the steps of:
 (a) re-sampling said luminance information using a first re-sampling process; 
 (b) re-sampling said chromatic information of said image using a second re-sampling process, at least one of:
 (i) re-sampling of said luminance information is different than said re-sampling of said chromatic information; and 
 (ii) said second process processes pixels of said image in a manner different than said first process; 
 
 (c) attenuating at least a portion of lower frequency chromatic information with respect to at least a portion of higher frequency chromatic information that results from said re-sampling of said luminance information; 
 (d) combining said re-sampled luminance information, said re-sampled chromatic information, and at least a portion of said higher frequency chromatic information into a re-sampled image. 
 
     
     
       19. The method of  claim 18  wherein said re-sampling of said luminance information is performed prior to said re-sampling of said chromatic information. 
     
     
       20. The method of  claim 18  wherein said attenuating is using a high pass filter. 
     
     
       21. The method of  claim 18  wherein said re-sampling of said luminance information results in two chromatic channels, where each of said chromatic channels is attenuated in a different manner. 
     
     
       22. The method of  claim 18  wherein said re-sampling of said chromatic information includes pixel re-sampling. 
     
     
       23. The method of  claim 18  wherein said re-sampling of said luminance information of said image is performed in such a manner that chromatic aliasing is reduced from what it would have been had said re-sampling of said luminance information been re-sampled in the same manner as said re-sampling of said chromatic information. 
     
     
       24. The method of  claim 18  wherein said re-sampling of said luminance information is performed on a luminance portion of said image free from substantial re-sampling of chromatic information of said image, while said re-sampling of said chromatic information is performed on a chromatic portion of said image free from substantial re-sampling of luminance information of said image. 
     
     
       25. A method for re-sampling an image having at least three color channels comprising the steps of:
 (a) re-sampling said image in a manner that the luminous information has a non-uniform sampling rate; 
 (b) filtering said re-sampled image in a manner that takes into account said non-uniform sampling rate in such a manner that reduces the chromatic artifacts of said image to less than it would have been had said non-uniform sampling been taken into account. 
 
     
     
       26. The method of  claim 25  wherein said image has a luminance non-uniform sampling rate in the horizontal direction. 
     
     
       27. The method of  claim 25  wherein said image has a luminance non-uniform sampling rate in the vertical direction. 
     
     
       28. The method of  claim 25  wherein said image has a luminance non-uniform sampling rate in a diagonal direction. 
     
     
       29. The method of  claim 25  wherein said filtering include a high pass filter of chromatic information.